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developerWorks  >  Lotus  >  Forums & community  >  IBM Lotus Notes/Domino 8.5 Forum (includes Lotus Notes Traveler)

IBM Lotus Notes/Domino 8.5 Forum (includes Lotus Notes Traveler)

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Subject: SMTP Open Relay
Feedback Type: Question
Product Area: Domino Server
Technical Area: Administration
Platform: Windows
Release: 8.5.3
Reproducible: Unknown

Hi, we have a peculiar situation.

Over the past many years, we have been using our Domino Server (being the main mail server) as a open SMTP relay for other servers. Other servers(quite a few of them) use the SMTP service of Domino to route mails related to alerts/notifications.

Now, there was an audit against us and it was mentioned that we need to restrict this to only the approved servers as there is chance of SMTP spoofing internally. SMTP Authentication is out of question for the time being. Can I use the setting "Allow messages only from the following internet hosts to be sent to external internet domains:" in the SMTP Inbound Controls of the Configuration document? If yes, can I just enter the IPs or hostnames of the servers in this field?

Any inputs are welcome. Thanks in advance.

Feedback number WEBBB24CRX created by Satish Bolla on 06/26/2018

Status: Open

SMTP Open Relay (Satish Bolla 26.Jun.18)
. . Inbound relay Enforcement (Mark Taylor 26.Jun.18)
. . . . Thanks Mark... (Satish Bolla 11.Jul.18)


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